EP0183286B1 - Befestigungssystem zur Befestigung eines gewebten Filters auf die Platte einer Kakaopresse - Google Patents

Befestigungssystem zur Befestigung eines gewebten Filters auf die Platte einer Kakaopresse Download PDF

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Publication number
EP0183286B1
EP0183286B1 EP85201549A EP85201549A EP0183286B1 EP 0183286 B1 EP0183286 B1 EP 0183286B1 EP 85201549 A EP85201549 A EP 85201549A EP 85201549 A EP85201549 A EP 85201549A EP 0183286 B1 EP0183286 B1 EP 0183286B1
Authority
EP
European Patent Office
Prior art keywords
press plate
angle
attachment
press
mat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP85201549A
Other languages
English (en)
French (fr)
Other versions
EP0183286A1 (de
Inventor
Gerardus Kruiver
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Machinefabriek PM Duyvis BV
Original Assignee
Machinefabriek PM Duyvis BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Machinefabriek PM Duyvis BV filed Critical Machinefabriek PM Duyvis BV
Publication of EP0183286A1 publication Critical patent/EP0183286A1/de
Application granted granted Critical
Publication of EP0183286B1 publication Critical patent/EP0183286B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/04—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams
    • B30B9/045—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams co-operating with several adjacent casings
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
    • A23G1/00—Cocoa; Cocoa products, e.g. chocolate; Substitutes therefor
    • A23G1/04—Apparatus specially adapted for manufacture or treatment of cocoa or cocoa products
    • A23G1/08—Cocoa butter presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/26—Permeable casings or strainers

Definitions

  • the invention relates to an attachment construction for the attachment of a woven filter mat to a press plate of a cocoa press, said filter mat being bent over at its peripheral edge and this edge being pressed against an oblique portion of the wall of the press plate.
  • a cocoa press comprises a series of pots and pressers which are supported on pull rods between a cylinder block and an end block, and which alternate.
  • the pots are rings which can slide over part of a presser.
  • Springs extend between the pots and a radially projecting flange part of the pressers.
  • Fastened on either side of each presser are press plates, each of which is provided with a large number of bores running transversely to the surface thereof and debouching at the back of the plate in a system of round and radial grooves. This system is connected to discharge pipes for pressed-out cocoa butter.
  • Each press plate is also covered with a filter mat which is woven from stainless steel wire.
  • Relatively thin filter mats are very flexible.
  • a known method is to bend the peripheral edge of a thin mat over 90°, to insert it into a groove in the press plate and to fix it with a cord made of teflon, aluminium or the like. It has been found that the mat soon breaks at the point where it is bent over, in particular at the point where the "warp" wires of the mat weave project vertically and the "weft” wires can easily slide off them. During detachment from the press plate very great forces are exerted on the mat. In general, a thick mat is preferable as regards strength, but the above-described finishing of the edge makes this mat too expensive.
  • the object of the invention is to avoid the above-mentioned disadvantages of attachment constructions of thin and thick mats and to produce a new attachment construction which leads in the case of thick mats to considerable saving and in the case of thin mats of a considerable improvement of durability and lengthening of the service life.
  • the attachment construction mentioned in the preamble is to this end characterised in that the oblique portion of the wall of the press plate is one of two opposite walls of a groove in the press plate into which said mat edge is inserted and the inserted edge is fixed by means of a pressed in cord, and that the first part of the groove wall against which the peripheral edge of the filter mat is pressed, forms a first angle a with the surface of the press plate and the remaining part of this groove wall forms a second angle P with the surface of the press plate, and the groove wall, against which the cord is pressed, forms an angle y with the surface of the press plate which substantially corresponds to said second angle P, and that said first angle a is substantially smaller than the second angle P.
  • said first angle a is about 30° and said second angle (3 is about 45°.
  • peripheral edge of the mat is only bent over a small angle, this fastening method is possible in the case of thick mats with little flexibility, and one can dispense with an expensive finishing of the peripheral edge.
  • the bending over only a small angle means that the bent-over part is much less fragile.
  • first part of the groove wall against which the peripheral edge of the filter mat is pressed is pressed to form an angle of about 30° and the remaining part of this groove wall to form an angle of about 45° with the surface of the press plate, and for the groove wall against which the cord is pressed to form an angle of about 45° with the surface of the press plate.
  • the cocoa press shown comprises a series of pressers 1 and pots 2 which are placed alternately one after the other, and between which are disposed press chambers 3. These pressers and pots are supported in sliding fashion on pull rods 4, which extend between a cylinder block 5 and an end block 6. Located in the cylinder block is a hydraulic plunger which can exert great pressure on the pressers and pots, in which case the pressers slide into the pots. Provided between the pots and pressers are compression springs 7 which push the pots and pressers apart when the plungers return to the initial position.
  • Each of the pressers is provided on either side with a press plate 8 in the form of a steel disc provided with bores 9, on which disc a filter mat 10 is attached.
  • each presser Recessed in each presser is a feed pipe for the cocoa mass to be pressed out. It consists of an axial part 11 disposed in the heart of the presser and a radial part 12. Disposed in the axial part 11 of each feed pipe is a shutoff mechanism 13 which can be opened by the pressure of the cocoa mass to be fed in, and the construction of which is described in NL-A-82.00588, which has been laid open for inspection.
  • the bores 9 debouch in a system of round and radial grooves, which is connected with discharge pipes 14 for pressed-out cocoa butter.
  • the cocoa mass is placed under pressure in the press chambers 3 through the pots and pressers sliding into each other.
  • Remaining behind on the filter mats 10 is a filter cake which during the return of the pressers to the initial position remains attached to the presser against a radial flange of which a pot is pressed.
  • the pots are shifted in the direction of the pressers lying opposite them, in which process the filter cakes are carried to the opposite pressers which detach the cakes from the pots, so that they can fall out of the press.
  • the present invention concerns the attachment method of the filter mat 10, woven from stainless steel wire, to a press plate 8.
  • a press plate 8 Provided in the press plate for this purpose near the periphery is a groove 15, whose opposite walls 16, 17 form an angle between 25° and 55° with the surface of the press plates.
  • the wall 16 first passes over an angle a of about 30° and then under an angle 13 of about 45°.
  • the wall 17 runs over the entire length under an angle y of about 45°.
  • the woven filter mat 10 is bent over at the periphery and inserted into the groove described.
  • Under the filter mat is a so-called under mat 18, whose peripheral edge is bent overthe angle a and only extends over the length of the part of the wall 16 running under the angle a.
  • the peripheral part of the filter mat inserted into the groove is fixed by a cord 19 made of teflon, aluminium or another suitable material and pressed into the groove.
  • the attachment method shown for the peripheral edge of the filter mat 10 has the following advantages:

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Beans For Foods Or Fodder (AREA)
  • Filtration Of Liquid (AREA)
  • Food-Manufacturing Devices (AREA)

Claims (2)

1. Befestigungsvorrichtung zur Befestigung einer gewebten Filtermatte an einer Druckplatte (8) einer Kakaopresse, wobei die Filtermatte an ihrer Außenkante umgebogen ist, und diese Kante gegen einen schrägen Abschnitt der Wand der Druckplatte gedrückt wird, dadurch gekennzeichnet, daß der schräge Abschnitt der Wand der Druckplatte (8) eine von zwei gegenüberliegenden Wänden (16, 17) einer Nut (15) in der Druckplatte ist, in die die Mattenkante eingesetzt ist, und die eingesetzte Kante mittels eines eingepreßten Seils (19) befestigt ist, so daß der erste Teil der Nutwand (16), gegen den die Außenkante der Filtermatte gedrückt wird, einen ersten Winkel a gegen die Fläche der Druckplatte bildet, und der übrige Teil der Nutwand (16) einen zweiten Winkel β gegen die Fläche der Druckplatte bildet, und die Nutwand (17), gegen die das Seil gepreßt wird, einen Winkel y gegen die Fläche der Druckplatte bildet, der im wesentlichen dem zweiten Winkel β entspricht, und daß der erste Winkel a wesentlich kleiner als der zweite Winkel β ist.
2. Befestigungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der erste Winkel a etwa 30° und der zweite Winkel β etwa 45° beträgt.
EP85201549A 1984-10-01 1985-09-25 Befestigungssystem zur Befestigung eines gewebten Filters auf die Platte einer Kakaopresse Expired EP0183286B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8402993A NL8402993A (nl) 1984-10-01 1984-10-01 Bevestigingsconstructie ter bevestiging van een geweven filtermat aan een persplaat van een cacaopers.
NL8402993 1984-10-01

Publications (2)

Publication Number Publication Date
EP0183286A1 EP0183286A1 (de) 1986-06-04
EP0183286B1 true EP0183286B1 (de) 1989-05-10

Family

ID=19844542

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85201549A Expired EP0183286B1 (de) 1984-10-01 1985-09-25 Befestigungssystem zur Befestigung eines gewebten Filters auf die Platte einer Kakaopresse

Country Status (5)

Country Link
US (1) US4633775A (de)
EP (1) EP0183286B1 (de)
DD (1) DD236872A5 (de)
DE (1) DE3570034D1 (de)
NL (1) NL8402993A (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8402010A (nl) * 1984-06-26 1986-01-16 Zaan Cacaofab Bv Filter voor een hogedruk-scheidingspers.
IT1264710B1 (it) * 1993-07-12 1996-10-04 Vitali Spa Controvaso per presse per spremitura di una massa di cacao e di semi oleosi
US5572438A (en) * 1995-01-05 1996-11-05 Teco Energy Management Services Engery management and building automation system
US6066350A (en) 1997-02-07 2000-05-23 Cargill Incorporated Method and arrangement for processing cocoa mass
US5924486A (en) * 1997-10-29 1999-07-20 Tecom, Inc. Environmental condition control and energy management system and method
IT1298786B1 (it) * 1998-03-24 2000-02-02 Vitali Spa Pressa orizzontale per la spremitura di essenze
NL1014739C2 (nl) * 2000-03-24 2001-02-05 Duyvis Machinenfab Bv Pers voor het scheiden van cacaomassa in cacaokoek en cacaoboter.
US20040071847A1 (en) * 2002-10-15 2004-04-15 Cargill, Inc. Producing cocoa powders with different cocoa butter contents by liquefied gas extraction on substantially the same production line
US20040071848A1 (en) * 2002-10-15 2004-04-15 Cargill Inc. Process for producing cocoa butter and cocoa powder by liquefied gas extraction
US7201934B2 (en) * 2002-10-15 2007-04-10 Cargill, Incorporated Dispersible cocoa products
EP4360463A1 (de) * 2022-10-26 2024-05-01 Royal Duyvis Wiener B.V. Robuste presse zur verarbeitung fetthaltiger masse

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1767078A (en) * 1927-11-29 1930-06-24 Johnson John Screen for filter presses
US2715965A (en) * 1950-10-04 1955-08-23 Fred S Carver Inc Pressure filter

Also Published As

Publication number Publication date
US4633775A (en) 1987-01-06
DE3570034D1 (en) 1989-06-22
NL8402993A (nl) 1986-05-01
DD236872A5 (de) 1986-06-25
EP0183286A1 (de) 1986-06-04

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